Select all that apply.

atoms are made up of

a. photons
b. protons
c. neutrons
d. charges
e. electrons

How are gross production and net production different? a. net production is always greater than gross production. b. net production is always less than gross production. only animals have net production. d. only plants have net production. select the best answer from the choices provided

When ash and dust begin to settle on the ground, they eventually become compacted by

At which point is crust neither created nor destroyed? island chain mid-ocean ridge divergent boundary transform boundary